A stochastic earthquake ground motion database comprising twelve groups of simulated motions was introduced. Ground were generated using the semi-physical model motions, based on a cluster analysis 7778 recorded motion. All validated through probability density evolution method (PDEM) by comparing their time histories and response spectra. As an application proposed database, 18-story reinforce...

over the past decade of extensive research works, the thin un-stiffened steel plate shear wall(spsw) has now emerged as a promising lateral load resisting system. considering thedemand of performance-based seismic design (pbsd) philosophy in current and futureseismic design codes, a ductility-based design was recently proposed for spsw systems withpin-connected boundary beams. however, the effe...

a total of 2519 blood samples were collected from five distinct populations of larestan, in fars province, in iran (lar, gerash, khour, latifi and berake) were examined for abo and rh blood groups. the gene frequencies obtained from these samples were compared with the hitherto reported corresponding data from other populations of fars province to determine the genetic structure of the larestan...

In this work, a tied braced frame (TBF) was developed to achieve uniform inelastic deformation in an eccentrically (EBF) by connecting links across the entire height with tie members. Herein, TBF design method is proposed, considering new lateral force distribution pattern. To better evaluate seismic performance, and verify advantages of TBF, nonlinear time-history analysis fragility were condu...

Due to low stiffness of braces after yielding, the structures with buckling-restrained braces (BRBs) experience high residual drifts during an earthquake, which can be intensified by aftershocks and causes considerable damages to structures. Also, due to poor distribution of stiffness, this problem is exacerbated for irregular structures. Recently, the yielding brace system (YBS) has been intro...

This paper presents the influence of gravity framing on collapse risk steel frame buildings with perimeter special moment frames (SMFs) designed in Turkey. For this, four- and eight-story have been considering related current specifications codes. Header end-plate connections are used for beam-to-column joints system. A nonlinear analytical model that simulates hysteretic behavior header is cal...

Harnessing the concept of inertial amplification, an amplifier coupled base isolator (IABI) is proposed in this paper. The seismic performance, terms story drift, shear reduction, has been compared with that classical (CBI) and inerter-based isolation system (Inerter-BI). A thorough analytical study, implementing rationals random vibration for harmonic Gaussian white noise conducted to identify...

The aim of this study is to compare the seismic response reinforced concrete (RC) symmetric buildings, with a varied number stories, strengthening three types passive energy dissipation systems, as tuned mass dampers, viscous and friction dampers. paper presents an overview design optimization object minimizing certain functions: (i) maximum displacement at top structures, (ii) base shear loads...

Many parameters affect the behavior of tall buildings under seismic loads, some which are main shock-after shock records and using lateral load resistance systems in reinforced concrete buildings. End shear walls a kind walls, connecting their end This study was conducted on two 30-story structures, were subjected to sequences far fault analyzed by nonlinear time history analysis. The results i...